Photo/Illutration Recipients of a COVID-19 vaccine shot at Aoyama Gakuin University, one of Tokyo’s mass inoculation sites, in the capital’s Shibuya Ward on Aug. 2 (Pool)

Tokyo confirmed 4,200 new COVID-19 cases and a record 197 patients listed in serious condition on Aug. 11, according to metropolitan government officials.

The previous high for the number of serious cases in the capital--which require ventilators or extracorporeal membrane oxygenation, also known as an ECMO lung bypass machine--was 176, set just the day before.

Two new deaths from the novel coronavirus, including a man in his 30s, were also reported in Tokyo on Aug. 11.

The 4,200 new infections brought the daily average of new COVID-19 cases in the capital over the week through Aug. 11 to 3,983.6, an increase of 14.5 percent from the preceding week.

The average number of diagnostic tests conducted in Tokyo over the three days through Aug. 10 stood at 8,797.3. The positivity rate rose to 22.3 percent as of that day.

Of the 4,200 new cases, 1,262 patients were in their 20s, followed by 867 in their 30s, 727 in their 40s and 485 in their 50s. Patients aged between 10 to 19 accounted for 397 cases, while 162 were aged 65 or older.

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